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ingredients

...are a popular base. The United States contributed elaborate sandwich formulas, two of the most successful being the club sandwich of sliced chicken or turkey, bacon, lettuce, and tomato, and the Reuben of corned beef, swiss cheese, sauerkraut, and Russian dressing served grilled on black bread. Hot sandwiches, notably the ubiquitous hamburger on a bun, are a staple of the American diet, with...